www.sisweb.com/catalog/08/E40
New Objective Electrospray Tips
E40
Scientific Instrument Services, Inc.
TM
Phone: 908-788-5550
New Objective -
Leaders in Nanospray Innovation
Leading high-sensitivity LC-MS research through
innovative life science sample prep and delivery
tools.
F
ounded in 1997 on PicoTip
TM
technology, a revolutionary
line of emitters for LC-MS. New Objective has remained
on the cutting edge of nanobore chromatography and
nanospray-based mass spectrometry through close communica-
tion with our customers, continuous innovation, and dedication to
quality.
Fused-silica PicoTip
®
emitters for online electrospray are avail-
able in the SilicaTip
TM
and the TaperTip
TM
, which differ in size and
operational flow rates. TaperTips are very robust emitters used in
microspray applications. Your emitter-mounting hardware must
accommodate 150 or 360 µm outside diameter (OD) fused-silica
tubing.
Coating Options
I
n order to perform electrospray, high voltage must be supplied to
the mobile phase. The electrical contact can be made in either of
two methods -- indirectly through a conductive coating on the
emitter, or directly through a junction. Each of these methods requires
different styles of emitters. Once you have determined your contact
method, select the corresponding coating. Distal coatings are most
durable.
Junction Contact with Distal-Coating (D)
The electrical contact is made to the outside of the emitter, which has
a conductive coating on the distal end. The voltage contacts the mobile
phase through the gap between the emitter and the transfer line.
PicoTips
®
with a distal coating have -D- in their stock numbers. Use pri-
marily with PEEK
TM
fittings.
Tip Contact Using the Standard Coating (CE)
The electrical contact is made to the outside of the emitter. The emit-
ter has a conductive coating on the tip where the voltage contacts the
mobile phase. PicoTips with a standard coating have - CE- in their stock
numbers. Use primarily with PEEK fittings.
Junction Contact for Uncoated Tips (N)
The electrical contact is made to the fitting holding the emitter.
Voltage contact is made directly to the mobile phase. PicoTips that are
uncoated have -N- in their stock numbers. Use primarily with metal fit-
tings.
Tip size (m)
LC column (m)
5 L/min
1 nL/min
10
100
1000
50
75
100
200
100
20
30
2
SilicaT
ip
TM
T
aperT
ip
TM
tip...
